“I will keep calling out Donald Trump and his phony populism. I will keep fighting for all workers across the country. And I will do everything I can to elect a Democratic President and a Democratic Senate in 2020," Brown said in a statement.

"The best place for me to make that fight is in the United States Senate.”

While Brown’s supporters extolled him as an authentic populist capable of winning the Midwestern and Rust Belt states that Trump carried in 2016, he would have likely faced a steep climb to the Democratic nomination, especially faced with more well-known and vocal primary challengers.

In putting his 2020 ambitions to rest, Brown becomes the latest Democrat to duck out of a potential presidential run this week.